4100123421 has 16 divisors (see below), whose sum is σ = 6076056000. Its totient is φ = 2732606064.

The previous prime is 4100123387. The next prime is 4100123429. The reversal of 4100123421 is 1243210014.

4100123421 is a `hidden beast` number, since 410 + 0 + 1 + 234 + 21 = 666.

It is not a de Polignac number, because 4100123421 - 2²³ = 4091734813 is a prime.

It is a super-2 number, since 2×4100123421² = 33622024134865486482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4100123394 and 4100123403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4100123429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78630 + ... + 119928.

It is an arithmetic number, because the mean of its divisors is an integer number (379753500).

Almost surely, 2^4100123421 is an apocalyptic number.

It is an amenable number.

4100123421 is a deficient number, since it is larger than the sum of its proper divisors (1975932579).

4100123421 is a wasteful number, since it uses less digits than its factorization.

4100123421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44985 (or 44979 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4100123421 is about 64032.2061231690. The cubic root of 4100123421 is about 1600.5367237107.

Adding to 4100123421 its reverse (1243210014), we get a palindrome (5343333435).

The spelling of 4100123421 in words is "four billion, one hundred million, one hundred twenty-three thousand, four hundred twenty-one".